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Finding the Fourth Proportional to 1,710.92, 2,566.53 and 670.85

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Solution

The fourth proportional to 1,710.92, 2,566.53 and 670.85 is: 1,006.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,710.92 : 2,566.53 = 670.85 : x
  2. Step 2: Convert to fraction form
    1,710.92/2,566.53 = 670.85/x
  3. Step 3: Cross multiply
    1,710.92x = 2,566.53 × 670.85
  4. Step 4: Simplify right side
    1,710.92x = 1,721,743.82
  5. Step 5: Solve for x
    x = 1,721,743.82/1,710.92
  6. Step 6: Final answer
    x = 1,006.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.